An antique ornate solid brass door lock set. Mono style. The knob has the CSBB acronym for Chicago Savings Bank Building. Heavy commercial well made hardware. Stamped PATENTED and 724205.
No key, strike plate or mount screws/bolts.
Size 4-3/4" square... up to 1-3/4" thick door... weight 5.75 lbs.
Unrestored condition with original patina - working... no key.
